公开(公告)号：US20220186695A1

公开(公告)日：2022-06-16

申请号：US17688206

申请日：2022-03-07

Applicant: Caterpillar Inc.

Inventor： Ye Tian ,  Quinton Marcus Burcar ,  Michael Taylor McKinley ,  Stephan Donald Roozenboom

IPC: F02M37/44 ,  F02M37/08 ,  F02M37/18

Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.

公开(公告)号：US10711726B2

公开(公告)日：2020-07-14

申请号：US15803049

申请日：2017-11-03

Applicant: Caterpillar Inc.

Inventor： James Steven Ulstad ,  Ye Tian ,  Purvarag S. Shah ,  Kranti Kumar Nellutla ,  Sasidhar Rayasam ,  Brian P. Brennan ,  Purna Chandra Sekhar Mokkarala ,  Mohammed Rafi H ,  Gregory Lance Armstrong

IPC: F02D41/38 ,  F02D19/02

Abstract: A fuel delivery system for an engine is provided. The fuel delivery system includes a fuel rail, a pressure sensor, a relief valve, and a controller. The controller is configured to receive a signal indicative of a fuel rail pressure, identify exceeding of the fuel rail pressure beyond a first threshold, identify the fuel rail pressure drop below a second threshold, and initiate a counter for a first predefined amount of time accordingly. The controller is also configured to identify if the fuel rail pressure drops below a third threshold within the first predefined amount of time, and identify if the fuel rail pressure remains below the third threshold for at least a second predefined amount of time. The controller is further configured to determine an open status of the relief valve based, at least in part, on the identification.

公开(公告)号：US20190136787A1

公开(公告)日：2019-05-09

申请号：US15803049

申请日：2017-11-03

Applicant: Caterpillar Inc

Inventor： James Steven Ulstad ,  Ye Tian ,  Purvarag S. Shah ,  Kranti Kumar Nellutla ,  Sasidhar Rayasam ,  Brian P. Brennan ,  Purna Chandra Sekhar Mokkarala ,  Mohammed Rafi H ,  Gregory Lance Armstrong

IPC: F02D41/38

CPC classification number: F02D41/3863 ,  F02D19/022 ,  F02D41/3845 ,  F02D2200/0602

Abstract: A fuel delivery system for an engine is provided. The fuel delivery system includes a fuel rail, a pressure sensor, a relief valve, and a controller. The controller is configured to receive a signal indicative of a fuel rail pressure, identify exceeding of the fuel rail pressure beyond a first threshold, identify the fuel rail pressure drop below a second threshold, and initiate a counter for a first predefined amount of time accordingly. The controller is also configured to identify if the fuel rail pressure drops below a third threshold within the first predefined amount of time, and identify if the fuel rail pressure remains below the third threshold for at least a second predefined amount of time. The controller is further configured to determine an open status of the relief valve based, at least in part, on the identification.

公开(公告)号：US12018598B2

公开(公告)日：2024-06-25

申请号：US17035256

申请日：2020-09-28

Applicant: Caterpillar Inc.

Inventor： Ye Tian

IPC: F01L1/18 ,  F01L1/26 ,  F01L1/46 ,  F01L13/00 ,  F01L13/06

CPC classification number: F01L1/181 ,  F01L1/26 ,  F01L1/46 ,  F01L13/0005 ,  F01L13/06 ,  F01L2305/00

Abstract: A rocker arm assembly for an engine valve system includes a rocker arm for actuating an engine valve, a stop, a biaser, and a swing lock attached to one of the valve end or the cam end of the rocker arm and defining a pivot axis, and including an actuating surface. The actuating surface is rotatable between a stopped orientation and an idled orientation, and the biaser biases the swing lock towards the stopped orientation where the swing lock contacts the stop and traps the swing lock between the rocker arm and one of an engine valve or a cam. The swing lock is movable in opposition to a bias of the biaser toward the idled orientation to deactivate the engine valve.

公开(公告)号：US11274641B1

公开(公告)日：2022-03-15

申请号：US17248667

申请日：2021-02-02

Applicant: Caterpillar Inc.

Inventor： Jeffery Fischer ,  Neil Edward Johnston ,  Brenton William Bush ,  Ye Tian ,  Quinton Burcar

IPC: F02M37/16 ,  F02M37/00 ,  F02M37/44 ,  F04B9/14

Abstract: A priming pump may include a housing; an inlet passageway inside of the housing; an outlet passageway inside of the housing; a divider, inside of the housing, separating the inlet passageway and the outlet passageway; a connecting passageway through the divider in fluid communication with the inlet passageway and the outlet passageway; a valve, disposed in the connecting passageway, configured for one-way fluid flow from the inlet passageway to the outlet passageway; a rotary pump, inside of the housing, having an inlet in fluid communication with the inlet passageway and an outlet in fluid communication with the outlet passageway; and a shaft connected to the rotary pump and extending through the housing, the shaft configured for rotation by an external driving mechanism.

公开(公告)号：US11268482B2

公开(公告)日：2022-03-08

申请号：US16854567

申请日：2020-04-21

Applicant: Caterpillar Inc.

Inventor： Ye Tian ,  Quinton Marcus Burcar ,  Michael Taylor McKinley ,  Stephan Donald Roozenboom

IPC: F02M37/44 ,  F02M37/08 ,  F02M37/18 ,  B01D27/08 ,  B01D27/14

Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.

公开(公告)号：US11131564B2

公开(公告)日：2021-09-28

申请号：US16796628

申请日：2020-02-20

Applicant: Caterpillar Inc.

Inventor： Michael T. McKinley ,  Ye Tian

IPC: G01D5/14

Abstract: A component identification system is disclosed. The component identification system may include a sensor system that includes a first Hall-effect switch configured to provide a first output signal corresponding to a state of the first Hall-effect switch, and a second Hall-effect switch configured to provide a second output signal corresponding to a state of the second Hall-effect switch. The sensor system may be configured to provide a single output signal that is based on the first output signal and the second output signal and indicates a combined state of the first Hall-effect switch and the second Hall-effect switch. The component identification system may include a component that is to be identified. The component may include a first magnet configured to affect the state of the first Hall-effect switch and a second magnet configured to affect the state of the second Hall-effect switch.